I have a problem with Firefox Beta 52. It doesn't happen in Firefox ESR 45. Sometimes when I drag url block from location bar, it doesn't show any image near mouse pointer. It happens unpredictably, however, I noticed one specific scenario when it happens 1. Open https://mozdevs.github.io/MediaRecorder-examples/record-live-audio.html , allow microphone 2. When microphone is displayed in location bar, drag url block from location bar Result: no image near mouse pointer Expected: there should be an image that shows that I'm dragging url of a page Url block is located in location bar between back/forward button in location bar and url in location bar. In Firefox 52 Beta it sometimes show (i) icon, and sometimes shows no image - very bad. In Firefox 45 ESR it shows (i) icon that doesn't have any relation to the opened page - bad. In Firefox 28 Release it shows protocol (globe if protocol is http, doorhanger if protocol is https) - good In Firefox 4 Release it shows favicon of opened web page - good+. Since Firefox 4 the situation was getting worse and worse, but I think I'd be OK with user interface as of Firefox Release 28 - I think it's the best option.

Mozregression-gui generated this regression range: https://hg.mozilla.org/integration/fx-team/pushloghtml?fromchange=3269dd1a824d1b42cb021d1fb6858885179940b0&tochange=2f24daceada71e15c03b5f90765264c720ed035a -> 1206233 – Indicator for devices actively streaming or permissions being used https://bugzilla.mozilla.org/show_bug.cgi?id=1206233

This simple css change ensures there's always the (i) icon near the mouse when dragging from the (i) icon, even if the camera or microphone icon was shown instead of the (i) icon when the user moused down, but this doesn't help when starting the drag from the padlock icon. I don't have any good idea to fix this right now.

Dão, any idea about what a good way to fix this would be?

(In reply to Florian Quèze [:florian] [:flo] from comment #3) > Dão, any idea about what a good way to fix this would be? With setDragImage?